1 - You shouldn't log your visit to an aqueduct if you've already logged the same spot as a "find" on another (similar) cache.
2 - This cache is for aqueducts destinated to transport water to cities/comunities or irrigation, not to carry boats or boatable whether they're Americans, Romans, Europeans, Mayans, etc... - For that kind of aqueducts, please, log Your "find" in the GC9A0E locationless cache.
The model for this cache is "Aqueduto das Águas Livres" (Free Waters Aqueduct) in Lisboa, Portugal (see picture below).
As one aqueduct can be logged only once in this cache, this one can't be logged again.
Here, is its history:
The "Aqueduto das Águas Livres", today not active, was built by demand of King John V and took more than one hundred years to be built requiring the efforts of three sovereigns: King John V, King Joseph I and Queen Mary I. The aqueduct was built to supply water to the Lisbon fountains, according to a project by "Manuel da Maia"; it supplied water to the city since 1748 to 1967. With 14km long from the main spring and with several secondary aqueducts in a total of 58 km, it supplied a net of fountains in the city. The channels to convey the water run along underground or aerial channels, ventilated by 137 skylights, on a total of 127 arches. The aqueduct has, in its most monumental part, a set of 35 arches, by "Custódio Vieira", over the "Alcântara"valley, whose arch with the biggest opening in the world looks impressive, with 65 meters high and 32 meters wide. Having supplied the capital with water for many decades, the impressive monument is now one of the most beautiful sights of Lisbon. It is even included in the «Guiness Book» for having the tallest stone pointed arch.
Search for an ancient aqueduct, collect its history if possible, take photos with your GPSr in one of them and record the coordinates.
Locationless cache requirements apply: One find per geocacher, each location can be logged only once. Check if "your" aqueduct wasn't logged before.
Try this Coordinate Distance Calculator, by Boulter (replace with your coords).
Good hunt and bring us memories of water and stone!
Don't forget: "Cache in, trash out" and Leave No Trace
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